| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. F Felecan vs F Jenni |
| 1-0 | 30 | 1996 | EU-ch U16 | A29 English, Four Knights, Kingside Fianchetto |
| 27. F Jenni vs F Doettling |
| 0-1 | 51 | 1996 | Bodensee-Cup 2nd | E63 King's Indian, Fianchetto, Panno Variation |
| 28. M Wortel vs F Jenni |
 | 1-0 | 36 | 1996 | EU-ch U16 | C39 King's Gambit Accepted |
| 29. Tukmakov vs F Jenni |
| 1-0 | 47 | 1997 | Weihnachts op-M 21th | E97 King's Indian |
| 30. F Jenni vs A Wojtkiewicz |
| ½-½ | 59 | 1997 | Neuchatel op | B22 Sicilian, Alapin |
| 31. G Hertneck vs F Jenni |
| 1-0 | 59 | 1997 | Credis | E97 King's Indian |
| 32. F Jenni vs G Hertneck |
| ½-½ | 65 | 1997 | Credis | B40 Sicilian |
| 33. F Jenni vs J Gallagher |
| 0-1 | 35 | 1997 | Credis | B22 Sicilian, Alapin |
| 34. J Gallagher vs F Jenni |
| ½-½ | 57 | 1997 | Credis | A45 Queen's Pawn Game |
| 35. J Gallagher vs F Jenni |
| ½-½ | 63 | 1998 | Biel | E81 King's Indian, Samisch |
| 36. G Beikert vs F Jenni |
| 0-1 | 66 | 1998 | Bodensee-Cup 4th | A15 English |
| 37. F Jenni vs Smyslov |
| ½-½ | 35 | 1998 | Nagler Memorial | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 38. Korchnoi vs F Jenni |
| 1-0 | 34 | 1998 | Nagler Memorial | E82 King's Indian, Samisch, double Fianchetto Variation |
| 39. F Jenni vs Unzicker |
| ½-½ | 34 | 1998 | Nagler Memorial | C47 Four Knights |
| 40. Gligoric vs F Jenni |
| 1-0 | 42 | 1998 | Nagler Memorial | E97 King's Indian |
| 41. F Jenni vs Larsen |
| ½-½ | 50 | 1998 | Nagler Memorial | B22 Sicilian, Alapin |
| 42. Smyslov vs F Jenni |
| 1-0 | 31 | 1998 | Nagler Memorial | C77 Ruy Lopez |
| 43. F Jenni vs Korchnoi |
| 0-1 | 41 | 1998 | Nagler Memorial | B18 Caro-Kann, Classical |
| 44. Unzicker vs F Jenni |
| 1-0 | 46 | 1998 | Nagler Memorial | C91 Ruy Lopez, Closed |
| 45. F Jenni vs Gligoric |
| ½-½ | 15 | 1998 | Nagler Memorial | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 46. Larsen vs F Jenni |
| ½-½ | 44 | 1998 | Nagler Memorial | C42 Petrov Defense |
| 47. D M Belmonte vs F Jenni |
| 0-1 | 52 | 1998 | World Junior Championship | E62 King's Indian, Fianchetto |
| 48. F Jenni vs D Sutkovic |
| 1-0 | 10 | 1998 | World Junior Championship | B17 Caro-Kann, Steinitz Variation |
| 49. Z Zhang vs F Jenni |
| ½-½ | 56 | 1998 | World Junior Championship | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 50. F Jenni vs A Al-Rakib |
| 1-0 | 36 | 1998 | World Junior Championship | B17 Caro-Kann, Steinitz Variation |
Kibitzing
